org.jooq.impl.TableImpl Maven / Gradle / Ivy
/**
* Copyright (c) 2009-2016, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Other licenses:
* -----------------------------------------------------------------------------
* Commercial licenses for this work are available. These replace the above
* ASL 2.0 and offer limited warranties, support, maintenance, and commercial
* database integrations.
*
* For more information, please visit: http://www.jooq.org/licenses
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*/
package org.jooq.impl;
import static java.util.Arrays.asList;
import static org.jooq.Clause.TABLE;
import static org.jooq.Clause.TABLE_ALIAS;
import static org.jooq.Clause.TABLE_REFERENCE;
import static org.jooq.SQLDialect.FIREBIRD;
// ...
import static org.jooq.SQLDialect.POSTGRES;
import java.util.Arrays;
import org.jooq.Clause;
import org.jooq.Context;
import org.jooq.Field;
import org.jooq.Record;
import org.jooq.Schema;
import org.jooq.Table;
import org.jooq.tools.StringUtils;
/**
* A common base type for tables
*
* This type is for JOOQ INTERNAL USE only. Do not reference directly
*
* @author Lukas Eder
*/
public class TableImpl extends AbstractTable {
private static final long serialVersionUID = 261033315221985068L;
private static final Clause[] CLAUSES_TABLE_REFERENCE = { TABLE, TABLE_REFERENCE };
private static final Clause[] CLAUSES_TABLE_ALIAS = { TABLE, TABLE_ALIAS };
final Fields fields;
final Alias> alias;
protected final Field[] parameters;
public TableImpl(String name) {
this(name, null, null, null, null);
}
public TableImpl(String name, Schema schema) {
this(name, schema, null, null, null);
}
public TableImpl(String name, Schema schema, Table aliased) {
this(name, schema, aliased, null, null);
}
public TableImpl(String name, Schema schema, Table aliased, Field[] parameters) {
this(name, schema, aliased, parameters, null);
}
public TableImpl(String name, Schema schema, Table aliased, Field[] parameters, String comment) {
super(name, schema, comment);
this.fields = new Fields();
if (aliased != null) {
alias = new Alias>(aliased, name);
}
else {
alias = null;
}
this.parameters = parameters;
}
/**
* Get the aliased table wrapped by this table
*/
Table getAliasedTable() {
if (alias != null) {
return alias.wrapped();
}
return null;
}
@Override
final Fields fields0() {
return fields;
}
@Override
public final Clause[] clauses(Context ctx) {
return alias != null ? CLAUSES_TABLE_ALIAS : CLAUSES_TABLE_REFERENCE;
}
@Override
public final void accept(Context ctx) {
if (alias != null) {
ctx.visit(alias);
}
else {
accept0(ctx);
}
}
private void accept0(Context ctx) {
if (ctx.qualify() &&
(!asList(POSTGRES).contains(ctx.family()) || parameters == null || ctx.declareTables())) {
Schema mappedSchema = Tools.getMappedSchema(ctx.configuration(), getSchema());
if (mappedSchema != null) {
ctx.visit(mappedSchema);
ctx.sql('.');
}
}
ctx.literal(Tools.getMappedTable(ctx.configuration(), this).getName());
if (parameters != null && ctx.declareTables()) {
// [#2925] Some dialects don't like empty parameter lists
if (ctx.family() == FIREBIRD && parameters.length == 0)
ctx.visit(new QueryPartList>(parameters));
else
ctx.sql('(')
.visit(new QueryPartList>(parameters))
.sql(')');
}
}
/**
* Subclasses may override this method to provide custom aliasing
* implementations
*
* {@inheritDoc}
*/
@Override
public Table as(String as) {
if (alias != null) {
return alias.wrapped().as(as);
}
else {
return new TableAlias(this, as);
}
}
/**
* Subclasses may override this method to provide custom aliasing
* implementations
*
* {@inheritDoc}
*/
@Override
public Table as(String as, String... fieldAliases) {
if (alias != null) {
return alias.wrapped().as(as, fieldAliases);
}
else {
return new TableAlias(this, as, fieldAliases);
}
}
/**
* Subclasses must override this method if they use the generic type
* parameter for other types than {@link Record}
*
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
@Override
public Class getRecordType() {
return (Class) RecordImpl.class;
}
@Override
public boolean declaresTables() {
return (alias != null) || (parameters != null) || super.declaresTables();
}
// ------------------------------------------------------------------------
// XXX: Object API
// ------------------------------------------------------------------------
@Override
public boolean equals(Object that) {
if (this == that) {
return true;
}
// [#2144] TableImpl equality can be decided without executing the
// rather expensive implementation of AbstractQueryPart.equals()
if (that instanceof TableImpl) {
TableImpl other = (TableImpl) that;
return
StringUtils.equals(getSchema(), other.getSchema()) &&
StringUtils.equals(getName(), other.getName()) &&
Arrays.equals(parameters, other.parameters);
}
return super.equals(that);
}
}